For top class, yet reasonably priced hard flight cases, I have used:
' JetLife ' cases. They are a small company based in Harrogate, North Yorkshire in the U.K. They did a Laney head and a complete Twin for me. Hand built and excellent quality. Unfortunately I have not kept the phone number. But you should be able to 'Google' them. They do a lot of work for the local Television companies and F1 race teams as well as musical gear. you provide the amp or the measurements and they do the rest. A perfect fit. Castors (if applicable) are about 10cm diameter with integrated brake mechanism on two out of four fitted. Corners are indestructible. They look beautiful too !
The only prohibitive factor may be shipping costs. If it's for your Bognor, they do a tight fitting case with heavy duty rubber grip sprung side handles. It's aircraft grade aluminium alloy over hardwood and high density foam. Indestructable corners and rubber feet. etc.
Hope you get what you want.
Regards,
Derek.
